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Enhanced Fast Frequency Support Schemes
2020 IEEE Power & Energy Society General Meeting (PESGM), 2020The increased penetration of large-scale renewable energy sources may result in ac grids with low inertia, where a sudden generation shortfall could lead to a high rate-of-change-of-frequency (RoCoF). Under such conditions, high-voltage direct-current (HVdc) links are expected to provide fast frequency support to contain frequency deviations within ...
Senthooran Balasubramaniam +6 more
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Analysis of Wind Farms Frequency Support
2021 IEEE PES Innovative Smart Grid Technologies Conference - Latin America (ISGT Latin America), 2021The increase in wind generation connected to power systems has caused changes in the power system characteristics. This increase has raised a concern related to the system frequency response after a disturbance, since the wind turbine generators do not present an inherent inertia response.
Carolina Correa Soto +3 more
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Forecasting Frequency-Corrected Electricity Demand to Support Frequency Control
IEEE Transactions on Power Systems, 2016Electricity demand forecasts are needed for decisions regarding generation dispatch for lead times as short as just a few minutes. Imbalance between generation and demand causes deviation of the system frequency from its target, which in Great Britain is 50 Hz. This, in turn, causes a change in demand, due largely to motor loads. For Great Britain, the
James W. Taylor, Matthew B. Roberts
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Frequency Trajectory Planning Based Transient Frequency Support of D-PMSG
2020 4th International Conference on HVDC (HVDC), 2020The grid connection of large-scale wind power will reduce the equivalent inertia and damping of the system, resulting in a decrease in system frequency stability. The directly-driven permanent magnet synchronous generators (D-PMSG)-based wind turbine (WT) usually uses conventional PD control to support frequency, however, the related controller ...
Hongqing Liu +3 more
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Bulk Grid Frequency Support Using Electrolyzers
2020 IEEE Industry Applications Society Annual Meeting, 2020Increasing renewable penetration in the bulk power systems has resulted in declining inertial response of the generation during system disturbances. This results in larger frequency deviations and oscillations during such events. This paper proposes a strategy for controlled dispatch of electrolyzers as loads to improve the system’s frequency response.
Bikiran Guha, Rishabh Jain, Santosh Veda
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Distributed generation control for frequency support
IET Conference Publications, 2009This paper investigates a new technique that could be applied to control distributed generation units in an islanded distribution network to support frequency. The frequency control technique relies on slow communication in order to establish the units that are in operation.
S. Hirodontis +3 more
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Natural Frequencies of Simply Supported Arcs
The Journal of the Acoustical Society of America, 1971Natural frequencies of simply supported elastic arcs vibrating in the plane perpendicular to the plane of initial curvature are obtained by applying a method previously used by the authors to determine upper- and lower-bounds frequencies of curved beams.
Tish-Chun Chang, Enrico Volterra
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Minimally Supported Frequency Composite Dilation Wavelets
Journal of Fourier Analysis and Applications, 2009Recently, in response to the growing interest in oriented oscillatory waveforms, \textit{K. Guo, D. Labate, W.-Q. Lim, G. Weiss}, and \textit{E. Wilson} introduced a new class of representation systems called \textit{Affine Systems with Composite Dilations} [Electron. Res. Announc. Am. Math. Soc. 10, 78--87 (2004; Zbl 1066.42023); in: Harmonic analysis
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Optimal frequency support by dynamic demand
2013 IEEE Grenoble Conference, 2013A high penetration of renewable energy sources challenges future grid frequency control. Decentralized demand control can contribute to this frequency control. In this paper a method is proposed where residential demand is controlled to support the frequency.
S. Weckx, J. Driesen, R. D'hulst
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Frequency-Constrained Generation Expansion Planning with Frequency Support from Wind Farm
2020 IEEE/IAS Industrial and Commercial Power System Asia (I&CPS Asia), 2020With the increasing integration of renewable energy, the inertia of power systems evidently decreases and poses a critical challenge to planners. To guarantee the frequency stability of the system with high shares of renewable energy, this paper presents a novel multi-machine system frequency response (MSFR) model, which tends to additionally ...
Chengming Zhang +6 more
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